Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7913772 | Drilling fluid flow diverter | Kristopher V. Sherrill, James Edward Stone | 2011-03-29 |
| 7566235 | Electrical connection assembly | Daniel P. Lupien | 2009-07-28 |
| 7084782 | Drill string telemetry system and method | Evan Lloyd Davies, Edward James Cargill, Gary L. Donison, Boguslaw Wiecek, Daniel P. Lupien +1 more | 2006-08-01 |
| 6568076 | Method of making an internally profiled stator tube | Lance D. Underwood | 2003-05-27 |
| 6309195 | Internally profiled stator tube | Lance D. Underwood | 2001-10-30 |